There is a small (one man) business here in Richmond, CA called "The Carburator Refactory". He rebuilds your carburator to the exact specifications for the application. He is in the phone book. I have not asked him if he does mail business. If I don't do the rebuild myself this is who I use. He will not rebuild a carb without doing the throttleshaft bushings. He has and has access to kits, parts, etc. that most of us can't find. I highly respect his work and integrity. DANA aka orphanautos